EP4019154B1 - Dispositif et procédé pour agglomérer la poussière - Google Patents

Dispositif et procédé pour agglomérer la poussière Download PDF

Info

Publication number
EP4019154B1
EP4019154B1 EP22158090.5A EP22158090A EP4019154B1 EP 4019154 B1 EP4019154 B1 EP 4019154B1 EP 22158090 A EP22158090 A EP 22158090A EP 4019154 B1 EP4019154 B1 EP 4019154B1
Authority
EP
European Patent Office
Prior art keywords
pressure
binder
line
dust
binding agent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP22158090.5A
Other languages
German (de)
English (en)
Other versions
EP4019154C0 (fr
EP4019154A1 (fr
Inventor
Stefan Widhalm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from ATA50903/2016A external-priority patent/AT519212B1/de
Priority claimed from DE202016105572.5U external-priority patent/DE202016105572U1/de
Application filed by Individual filed Critical Individual
Priority claimed from PCT/EP2017/075501 external-priority patent/WO2018065586A1/fr
Publication of EP4019154A1 publication Critical patent/EP4019154A1/fr
Application granted granted Critical
Publication of EP4019154B1 publication Critical patent/EP4019154B1/fr
Publication of EP4019154C0 publication Critical patent/EP4019154C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
    • B05B9/0423—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material for supplying liquid or other fluent material to several spraying apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B17/00—Methods preventing fouling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/20—Arrangements of several outlets along elongated bodies, e.g. perforated pipes or troughs, e.g. spray booms; Outlet elements therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/02—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery
    • B05B12/04—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery for sequential operation or multiple outlets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06—Spray cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
    • B05B12/085—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to flow or pressure of liquid or other fluent material to be discharged
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B17/00—Methods preventing fouling
    • B08B17/02—Preventing deposition of fouling or of dust

Definitions

  • the present invention relates to a device and a method for binding dust.
  • a device for binding or knocking down dust emerges.
  • This device is designed similarly to a snow cannon with an air nozzle in which air is accelerated by means of a propeller or a blade.
  • air jet formed in this way, liquid is sprayed in through one or more nozzles. The liquid is thus transported in finely divided form by the air jet.
  • This device allows large amounts of water to be distributed over a large area.
  • a nozzle for atomizing water or a water-air mixture for the precipitation of dust in underground mining is described.
  • the nozzle is designed to be self-cleaning in that a part that determines the outlet cross section of the nozzle is acted upon by a spring force. If the nozzle is dirty, excess pressure is created which overcomes the spring force. This enlarges the nozzle opening and the nozzle cleans itself.
  • German utility model DE 1 668 644 U discloses an apparatus for precipitating dust from gases in which fine particle vapor is used to envelop the dust particles.
  • Nozzles are provided on the pipe system, from which a partial flow of a mixture of air and liquid is branched off becomes. With each branch, the mixing ratio between air and liquid changes. This is specifically used to vary the mixing ratio of mist to drizzle along the pipe system.
  • a device for introducing slightly dusty bulk material into a round silo is described.
  • the bulk material is wetted with a dust binding agent by spraying it with the dust binding agent.
  • the dust binding agent is water with the addition of a substance that relaxes the water surface.
  • From the DE 6 812 095 U shows another device for precipitation of dust, in which the dusty material is sprayed directly with water.
  • the DE 1 815 543 relates to a device for the precipitation of dust during cutting and peeling coal mining.
  • the immediate location of dust generation and its immediate surroundings should always be covered with a water veil.
  • An extraction machine is always located in the area of a group of nozzles, from which it is covered with a water veil.
  • planing lane spraying system emerges in which a planing lane can be sprayed with several nozzles.
  • This spraying system is characterized by the fact that the nozzles assigned to an expansion frame can be fed via their own switching valve and several spray zones of variable size can be formed. This is intended to achieve optimal adaptation of the spray zone to the respective conditions while reducing water consumption, since only as many nozzles are switched on or fed in as are required for the greatest possible dust binding.
  • From the DE 1 795 744 U discloses a device for precipitation of dust suspended in the air, which has a washer with which the air containing the dust is sucked in and sprayed with water within the washer so that the dust is bound.
  • a high-pressure fog system is described that can be used, among other things, to bind dust.
  • This high-pressure mist system is intended to generate floating water mist. Water, especially drinking water, is supplied at a pressure of around 70 - 100 bar to misting openings at which the water is sprayed. Using switchable valves, several zones can be provided, which are supplied with mist independently.
  • WO 2011/095463 A2 is a spray nozzle unit, in particular for spraying explosive areas in underground mining and for use in ultra high-speed fire suppression systems with response times of less than 50 ms.
  • This spray nozzle unit includes a nozzle body which has a nozzle opening for spraying out spray liquid.
  • This device comprises a storage container for binders, with pumps being controlled by means of an optical sensor in order to convey binders from the binder storage container and to release them accordingly.
  • binder is pumped out of the storage container using the pump or pumps and delivered via the corresponding nozzles.
  • a dust binding device for containers is disclosed. According to this device, it is provided to convey binder from an external storage container and to release it via a corresponding line system using pumps into a container above a dusty medium in order to bind the dust in this way.
  • U1 is a device for removing suspended dust, especially fine dust, from the ambient air of a transport infrastructure disclosed.
  • This device includes e.g. B. a spray device with a pressure generating device for providing a pressure difference.
  • the spray device presses or sucks liquid solvent from an intermediate container, which is fed via a supply line, not shown. It is provided that the spray devices are used to transport the liquid solvent from the floor, at the height of which a respective intermediate container is arranged, into an elongated spray line. Nozzles are arranged along the length of the spray line. The liquid solvent is sprayed from these nozzles into the ambient air in drop form.
  • Spray nozzles are provided, which z. B. can be switched on and off individually or in groups using appropriate switching valves using a lever.
  • a control device can be used to remotely control the switching valves using appropriate switching elements.
  • the spray nozzles should be controlled in such a way that the dust is effectively deposited directly at the point of origin, ie in the working area of the extraction machine, regardless of the respective driving speed of a extraction machine.
  • a device for knocking down dust is disclosed. It is intended to combine a large number of nozzles into groups that can be operated together in such a way that the respective group areas overlap in order to operate the nozzle group within which the extraction device is located in order to knock down the dust generated by the extraction device.
  • This spray device includes a storage container.
  • a pump is connected to the storage container via a line in order to convey a spray medium from the storage container.
  • the pump can be designed as a gear pump.
  • a line is connected to the pump, on which several nozzles for dispensing the spray medium are arranged.
  • a valve is provided to control the dispensing of the spray medium.
  • the volume flow of the spray medium conveyed from the storage container can be adjusted using another valve. It is also described in the application that the spray medium 14 is conveyed to the nozzles by means of a pressure generated by the pump.
  • the pump is designed as a gear pump.
  • another line branches off from the line into the storage container, to which corresponding nozzles are connected in order to agitate, mix and stir the spray medium.
  • a movable storage device comprises a pressure vessel which has means for exerting pressure forces on water held in the pressure vessel.
  • the means for exerting pressure forces can be formed in the pressure vessel itself or on the pressure vessel, for example by a pressure compensation vessel.
  • the pressure vessel has a deformable membrane that divides the pressure vessel into a lower chamber and an upper chamber.
  • the lower chamber can be filled with water via a pipe and then reduces the size of the upper chamber, in which a coil spring is arranged to pressurize the membrane.
  • an inert gas such as nitrogen or carbon dioxide can be kept in the chamber as a compressible pressure medium.
  • a delivery valve is aimed at the area to be watered and opened.
  • a spray nozzle with an upstream actuating valve 32 is preferably provided for delivery.
  • DE 000P0047416MAZ discloses a sprinkler system with an automatically acting shut-off device.
  • This irrigation system is z. B. designed to irrigate three different irrigation fields I, II and III.
  • a sprinkler system emerges with branch lines extending from a field line.
  • WO 2008/013444 A1 discloses a device for binding dust, comprising a binder reservoir which provides pressurized liquid binder, a binder line which is connected to the binder reservoir, at least one atomizing nozzle being connected to the binder line and which can be arranged in the vicinity of a dust source is, wherein the binder line has a route along which several atomization nozzles are arranged.
  • An object of the present invention is to provide a device and a method for binding dust, with which dust can be bound very efficiently.
  • a further object of the present invention is to provide a device and a method for binding dust, with which dust can be reliably bound with as little dust binding agent as possible.
  • a further object of the present invention is to provide a device and a method for binding dust, the device or the device used in this method being subject to little wear.
  • a further object of the present invention is to provide a device and a method for binding dust, with which the escape of dust is reliably prevented along or within a large distance or large area, such as a road section or a gravel pit or can be significantly reduced.
  • a further object of the present invention is to provide a device and a method for binding dust, which can be attached to or integrated into machines and vehicles of various types, such as stone crushers, track-laying machines, asphalt milling machines, cleaning vehicles, etc., with which also mobile operation is possible.
  • Binding dust can basically be done using an artificial mist or a drizzle.
  • an artificial fog a fog is created in the air that slowly settles to the ground, with the fog droplets washing the dust out of the air.
  • the spray rain moistens the ground with binding agent so that the formation of dust is prevented.
  • the main difference between the formation of fog and drizzle is the size of the droplets, although the transition is smooth.
  • the creation of a mist also results in wetting of the ground and the creation of a drizzle also results in the washing of dust from air.
  • an artificial fog the main effect is to wash dust out of the air and with a drizzle it is to wet the ground.
  • Artificial fog includes droplets with a size smaller than 200 ⁇ m, in particular smaller than 150 ⁇ m or smaller than 100 ⁇ m.
  • Drizzle includes droplets with a size of at least 100 ⁇ m, in particular at least 150 ⁇ m and preferably at least 200 ⁇ m.
  • the amount discharged should be set lower than if the floor is not sealed.
  • the amount of binder to be discharged should be at least 0.75 l/m 2 /h and preferably at least 1 l/m 2 /h or in particular at least 1.2 l/m 2 /h in order to ensure sufficient wetting of the soil.
  • the atomizing nozzle is arranged close to the dust source, and is preferably designed and arranged in such a way that it is not the dust source that is sprayed with the binder, but rather a binder mist is formed at a predetermined distance from the dust source.
  • This arrangement is based on the knowledge that dust is whirled up at a dust source, which means that a dust source is usually associated with a turbulent air flow. If one were to bind dust in such a turbulent air flow using a binder, then the binder requirement would be considerable.
  • the distance must be chosen so that in the area of the fog the air flow containing the dust has calmed down to such an extent that the fog can gradually descend to the ground and is not moved away in an uncontrolled manner.
  • a distance of a few 10 cm, preferably at least 50 cm or at least 1 m or at least 2 m, must be maintained.
  • external air currents which can be generated by movements of goods, vehicles, wind or thermals, must also be taken into account. Thermals often occur, especially in halls. It may also be useful to have one or more baffles to be provided with which an air flow contaminated with dust is directed so that it calms down and an artificial mist can efficiently remove the dust.
  • the distance to the dust source should preferably be chosen so that the mist is primarily in an area in which the air flow is not greater than 1 m/s, in particular not greater than 0.8 m/s or not greater than 0.7 m /s and preferably not greater than 0.5 m/s. It has been shown that with air flows of more than 1 m/s, the dust cannot be efficiently bound with a mist and the amounts of water required to efficiently bind dust increase exponentially. Air currents can vary in location and time. When unloading large stones, for example, a very strong air flow can occur for a short time, with the air flow being significantly weaker in the breaks between the individual unloading processes.
  • Baffles can be provided to keep external air flows away from the fog area in order to be able to comply with the air flow limit values in the fog area explained above.
  • the binder is a liquid binder, preferably water.
  • an air/water mixture is often used.
  • such an air/water mixture is disadvantageous because the air content creates a high inherent air flow, which is not suitable for generating a floating mist.
  • An air/water mixture can be used to produce a spray, although water propelled through an atomizing nozzle without air is preferred.
  • the binder is made available in the binder reservoir at a pressure of preferably a maximum of 10 bar, particularly preferably a maximum of 7 bar and in particular not more than 5 bar.
  • the lower the pressure the easier it is to design a device with a long binder line, which allows large areas to be covered with spray mist.
  • At higher pressures there is a risk that individual components will not be able to withstand the load in the long term and the entire regulation and control of the pressure in the binder line becomes significantly more complex and complicated.
  • the binder reservoir should provide the binder at a pressure of at least 2 bar, preferably at least 3 bar and particularly preferably at least 4 bar.
  • the higher the pressure at the binder reservoir the greater can be the pressure losses in the binder line, and yet sufficient pressure for atomization can be provided at the atomization nozzle(s). This also means that the greater the pressure at the binder reservoir, the longer the binder line can be without the need for an additional pressure stage in the form of a pump.
  • the binder reservoir can be a well, a tank with or without a feed pump or a connection to a water pipe, which provides the binder water at a predetermined pressure.
  • the pressure at which the binder reservoir or a binder source is provided is preferably adjusted using a pump.
  • the pressure can also be predetermined, for example, by an existing water supply or an elevated tank, which provides sufficient pressure through a suitable geodetic height difference, so that no extra pump is necessary to remove the binder from the binder reservoir.
  • the binder line can be made of an elastic tube, such as a plastic tube, in particular a PE tube.
  • elastic tubes have significant advantages because, on the one hand, they can buffer pressure, connection points for atomization nozzles can be punched at any location and can also be laid very quickly and easily.
  • High-pressure pumps are pumps that generate a permanent operating pressure of 20 bar or more.
  • the atomizing nozzle or nozzles are designed such that the binder is atomized with a droplet size of 30 to 120 ⁇ m and preferably with 50 to 150 ⁇ m and in particular with a droplet size of 60 to 90 ⁇ m.
  • a droplet of this size forms a floating mist in calm air, which reliably binds the dust and gradually sinks.
  • the binder line can extend over a distance of at least 100 m or in particular of at least 300 m, with a plurality of atomizing nozzles being connected to the binder line along this distance, and the device being designed in this way is that no more than 6 l/m 2 h of binder is discharged onto the ground during a spraying process.
  • the amount of binder sprayed is preferably adjusted so that there is a slight excess of moisture, i.e. not all of the atomized binder can be absorbed into the air, but rather liquid mist particles are present in the air. Such mist particles descend and bind the dust contained in the air and transport it to the ground.
  • the amount of water dispensed is so large that there is a sufficiently strong downward movement to transport the dust downwards quickly. A certain excess of binder reduces the control effort.
  • the devices for generating an artificial mist are preferably designed in such a way that approximately 5 to 30 liters of binder per hour are dispensed per nozzle, the binder being distributed over an area of 0.8 m to 1.5 m around the nozzle.
  • the at least one atomizing nozzle is preferably a pressure nozzle, which is designed with an automatically blocking or opening pressure control valve and therefore opens automatically from a certain opening pressure of the supplied binder and the device has a pressure control with which the pressure in the binder line can be controlled. This makes it possible to use the pressure control to control whether the one or more atomizing nozzles release binder or not.
  • the binder line can have one or more pressure control valves, which open as pressure switching valves from a predetermined switching pressure and thus release a binder supply to the atomizing nozzle (s) or also open as pressure control valves from a predetermined switching pressure and at the same time a pressure on the outflow side of the pressure control valve to a predetermined pressure range.
  • corresponding pressure nozzles or corresponding pressure control valves which open as pressure switching valves from a predetermined switching pressure and thus release a supply of binder to the atomizing nozzle (s) or also open as pressure control valves from a predetermined switching pressure and at the same time regulate a pressure on the outflow side of the pressure control valve to a predetermined pressure range , are shown below and are also explained in detail using a corresponding exemplary embodiment.
  • the pressure nozzles or the pressure control valves can, for example, be designed with an opening pressure of 2 bar, 3 bar or 4 bar.
  • the closing pressure is preferably slightly lower than the opening pressure. With an opening pressure of 2 bar, the closing pressure is, for example, 0.9 bar, with an opening pressure of 3 bar, for example, 1.5 bar and with an opening pressure of 4 bar, for example, 1.8 bar. This ensures that the pressure drop generated after opening the respective nozzle does not immediately close the printing nozzle again, but can continue to be kept open at a low pressure.
  • the pressure nozzles may be integrally formed with a pressure valve having a predetermined opening and a predetermined closing pressure.
  • pressure nozzles can also be formed from a nozzle and a separate, upstream pressure valve.
  • the pressure nozzles preferably have a membrane which is acted upon by a piston preloaded with a spring, so that a passage of the pressure nozzle is only opened from the predetermined opening pressure and is closed again when the shooting pressure is reached.
  • the pressure nozzles are preferably set so that they provide a pressure at the respective atomization nozzles in the entire dust binding device or in certain sections in which essentially the same atomization nozzles are specified, which differs by a maximum of 20% and in particular a maximum of 10%.
  • Such a uniform application of pressure causes a uniform dispensing of binder, whereby the uniformity here refers both to the geometry of the respective spray cone of the individual atomizing nozzles and to the amount of binder dispensed.
  • a different intensity of discharge of binder is preferably set by the distance between successive atomization nozzles and not by different pressures.
  • the atomizing nozzles are preferably designed in such a way that they emit the binder with a circular or semicircular cone.
  • the distance between two successive nozzles is preferably the diameter D of the circle of the corresponding cone minus at least 20% (corresponds to 0.8D) and in particular at least 34% (corresponds to 0.66D) of this diameter.
  • an approximately strip-shaped area is evenly supplied with binding agent, with the overlapping sections of adjacent throwing cones being limited.
  • the distance between adjacent nozzles is in the range of the diameter of the cone minus at least 45% and preferably at least 50% of the diameter.
  • the smaller distances between the nozzles with at least 45% deduction from the diameter are preferred.
  • Mist-generating dust binding devices generally have a nozzle arrangement with maximum distances of 0.55D or 0.5D.
  • the pressure control preferably has a control valve which is arranged in the binder line in the area between the binder reservoir and the at least one pressure nozzle, the control valve being controllable by a control device.
  • the at least one atomizing nozzle can be specifically supplied with binder at a predetermined pressure.
  • control valves can also be provided, each of which is followed by one or more atomizing nozzles, which are then each subjected to a predetermined pressure by means of the respective control valve with binding agent.
  • the control valves can be controlled hydraulically, pneumatically, electrically or mechanically by the control device.
  • the at least one atomizing nozzle can also be provided with a valve that can be controlled directly by a control device.
  • the device can also comprise atomization nozzles designed as pressure nozzles as well as atomization nozzles provided with a directly controllable valve. Such directly controllable valves can be opened and closed remotely by the control device.
  • the binder reservoir or a pressure reservoir can comprise a pressure vessel with a gas cushion.
  • a pressure vessel with a gas cushion can be designed as a membrane vessel which has a membrane which divides the membrane vessel into a gas pressure chamber and a binder chamber.
  • the pressure vessel can also be an air vessel in which a gas bubble is arranged, which is in direct contact with the binder. Since gas is compressible, binder can be accommodated in the pressure vessel with a gas cushion, whereby the gas is compressed in the gas pressure chamber, whereby the binder is stored in the pressure vessel with a gas cushion as the pressure increases. With one or more such pressure vessels with a gas cushion, dynamic pressure changes can be reduced. Such dynamic pressure changes occur when the flow velocity changes due to the inertia of the liquid.
  • a pressure vessel with a gas cushion is installed in front of the pump or at the pump inlet, this vessel can serve as additional protection for the pump or the upstream hydraulic elements, as it can compensate for supply fluctuations and dampen pressure surges.
  • the binder supply to this pump must be under a certain pressure, otherwise the pressure vessel would empty.
  • the device can also include several pressure vessels with a gas cushion.
  • the pressure vessels with gas cushions can also be arranged distributed along the binder line.
  • the volume of the pressure vessel with a gas cushion or the pressure vessel with a gas cushion can be at least 300 l, preferably at least 1,000 l, in particular at least 5,000 l and preferably at least 10,000 l or several 10,000 l.
  • the volume of the pressure vessel with gas cushion includes both the volume of the gas pressure space and the volume of the binder space.
  • the binder space is usually around 20% to 50% of the total volume of the pressure vessel. In the normal state of the device, the pressure in the gas pressure chamber should be approximately 0.5 to 0.9 times the operating pressure or the switch-on pressure of a feed pump.
  • pressure vessels with gas cushion(s) are used in a dust binding device, which runs empty during standstill or break times.
  • dust binding devices which have no or only a few self-locking pressure control valves that function as leak stops.
  • the lines of this dust binding device empty partially or completely.
  • the property of pressure vessels with a gas cushion is advantageous because they initially deliver binder quickly into the line at high pressure, with the pressure in the pressure vessel decreasing due to the expansion of the gas cushion, which also reduces the delivery pressure accordingly. When the pipes are almost completely filled, the pressure is reduced, which reduces the problem of pressure hammer.
  • Different sections can be formed in a dust binding device, which empty at different speeds during a standstill.
  • the individual sections can each be provided with a separate pressure vessel if this is practical.
  • the sections that empty quickly are preferably provided with a pressure vessel so that they can be quickly refilled.
  • the pressure vessel with gas cushion preferably has a supply line for filling the pressure vessel with gas cushion and a discharge line for emptying the pressure vessel with gas cushion, the supply line having a cross-sectional narrowing compared to the discharge line, so that the filling of the pressure vessel with gas cushion occurs at a slower speed than emptying of the pressure vessel with gas cushion.
  • the slow filling of the pressure vessel with gas cushion leads to a gradual braking of the moving binder liquid column.
  • Such a design of the pressure vessel with a gas cushion is also suitable for reliably intercepting flows directed downhill.
  • both the duration of filling the pressure vessel(s) with gas cushion and the duration of emptying can be influenced by various mechanisms and/or depending on the prevailing operating pressures.
  • another flow resistance can also be provided in the supply line.
  • the flow resistance can be designed, for example, as a pressure reducer, baffle plate or as a height difference. If the pressure vessel with gas cushion is arranged a little above the binder line, preferably a few meters above the binder line, then the binder must be opposite to fill the pressure vessel with gas cushion can be conveyed upwards by the gravitational force and can be quickly transported into the binder line when the pressure vessel with gas cushion is emptied due to the gravitational force. If the deceleration when filling and the acceleration when emptying are caused solely due to such a height difference, then the supply line and the discharge line can be designed as a common line. When using such a height difference, it is expedient that the cross section of the supply line and the discharge line is large, so that the liquid wave leading from the binder line to the pressure vessel with gas cushion has a high weight.
  • self-closing pressure nozzles which function as an outlet stop, allow interval operation, since pressurized water is always directly applied to the atomization nozzles or the pressure nozzles arranged adjacent to them. Furthermore, the provision of one or more pressure vessels for interval operation is advantageous, since emptying often cannot be completely prevented even with automatically closing pressure nozzles. The automatically closing pressure nozzles often lead to very slow emptying, so that refilling at the beginning of a spraying interval can be done very quickly using a pressure vessel with a gas cushion.
  • This use of automatically closing pressure nozzles or the use of automatically closing control valves in conjunction with one or more pressure vessels results in very short reaction times for spraying out binder after a spray pause.
  • the reaction time is measured after a break of at least 5 minutes from the time a pump is switched on or a valve is opened, so that a strand in which the atomization nozzles are located is supplied with binder that is pressurized up to that point in time , where all nozzles that are supplied with binder by switching on the pump or opening the valve release binder.
  • response times of a few seconds were achieved, even when the strand was longer than 100 m.
  • Dust-binding devices for generating mist are preferably designed so that their reaction time is not greater than 10 s and in particular not greater than 5 s, and dust-binding devices for wetting a floor are preferably designed so that their response time is not greater than 2 minutes and in particular not greater than 1 minute and preferably not greater than 30 s.
  • Such short reaction times can be achieved even with large dust binding devices which have strands with a length of more than 100 m and in particular more than 300 m.
  • the device preferably has a pump which pumps the binder.
  • a pressure switch can be coupled to the binding agent line, which switches on the pump when the pressure falls below a predetermined switch-on pressure, the switch-on time. This automatically maintains a predetermined minimum pressure in the binder line.
  • pressure switches do not all have to be switched on at all times; they can also be “conditioned”. For example, the vacuum switch is only used to monitor possible negative pressure while the pump is running.
  • the pressure switches can also be equipped with two switching points (lower and upper) in order to create certain hysteresis, which allows the system to run more stable and quieter, since not every small change in status immediately leads to a switching process, but a certain threshold value must first be exceeded. This means that the system runs more stable and does not start to clock/oscillate.
  • the pressure switches can be linked to timers (e.g. time relays), so that when a switching point is reached, only the timer is initially activated and the switching process only takes effect after the stored time has elapsed.
  • the pressure switches can either trigger processes directly or only act as a warning indicator.
  • visual pressure indicators e.g. pressure gauges or remote pressure transmitters, can also be installed or temporarily coupled near the pressure switches.
  • the pressure switch can also be designed in such a way that when a predetermined switch-off pressure, the switch-off time, is exceeded, the pump switches off and/or an emergency drain valve opens.
  • a flow measuring device can also be coupled to the binder line in such a way that when the flow rate falls below a predetermined minimum, the pump is switched off and/or an emergency drain valve is opened. This automatically ensures that the pressure in the binder line does not increase too much.
  • This flow measurement is expediently time-linked, i.e. the measured value of the flow sensor is only valid after a certain stabilization phase after the system has been started up (during the start-up phase, for example, abnormal conditions prevail for a short time).
  • This can also be linked to the condition that, for example, the flow rate is exceeded for a certain minimum time.
  • a switch-off delay device can be provided, which only switches off the pump after a predetermined delay time interval has elapsed allowed, whereby the delay time interval begins with the switch-on time or the switch-off time or a time between the switch-on time and the switch-off time.
  • Such a switch-off delay device prevents short-term fluctuations in pressure or volume flow from switching off the pump, which would cause further pressure changes.
  • the change in state, ie the pressure drop or the reduction in flow must therefore exist for a certain period of time before the pump is switched on.
  • the delay time interval is preferably at least 5 seconds, preferably at least 15 seconds and in particular at least 30 seconds.
  • An overpressure pressure switch can be coupled to the binder line, which switches off the pump and/or opens an emergency release valve when a predetermined overpressure is detected that is greater than the switch-off pressure.
  • the switching due to the detection of an overpressure by means of the overpressure pressure switch preferably overrides all further control processes, such as non-switching off due to a continuous delay time interval.
  • signaling/alarm notification/alarm action can be initiated, such as additional disconnection of the binder supply.
  • the device is preferably designed such that the flow speed of the binder in the lines is not greater than 5 m/s and preferably not greater than 3 m/s.
  • the pressure losses are proportional to the square of the flow velocity. In practice, these upper limits have proven to be very advantageous, since these flow speeds enable a reliable supply of several atomizing nozzles over a long distance (e.g. 1 to 5 km) with reasonable line cross-sections. At higher flow speeds, problems can arise due to pressure surges.
  • the binder line can have a main strand and a secondary strand with a smaller cross section that runs parallel to the main strand, with the ends of the secondary strand opening into the main strand and a volume flow measuring device being arranged in the secondary strand.
  • the flow measured in the secondary line is proportional to the flow in the main line or main stream and thus indicates the total volume flow through the main line and the secondary line. Measuring the lower volume flow in the secondary line is much easier than measuring the much larger volume flow in the main line.
  • the volume flow measuring device can be designed in such a way that it measures the flow indirectly based on the temperature of the binder in the pump or in the flow direction shortly after the pump and/or based on the current consumption of the pump and/or based on the pressure difference before/after the pump and/or based on the pressure in front of the pump and/or based on the pressure after the pump and/or based on the acoustics of the pump and or based on the current energy consumption of the pump shaft. Since the pump generates heat and the binder is often provided by a cool reservoir, such as a well, the volume flow of the binder in the binder line or in can be based on the temperature of the binder in the pump or in the flow direction shortly after the pump the pump must be closed.
  • a ventilation device can be arranged in the binder line, which releases air bubbles from the binder line to the outside. Such air bubbles can arise from outgassing of the binder due to pressure changes.
  • the venting device may be a passive venting valve that is permeable to gas and impermeable to liquids.
  • the venting device can also be a switchable valve that is arranged in the binder line. If a gas bubble is present, the switchable valve is opened using a control device.
  • the presence of a gas bubble can be detected by the control device and/or by means of a sensor based on certain operating states.
  • the predetermined operating states that can be detected by the control device are, for example, a standstill in the delivery or a low pump load when starting up.
  • Gas bubbles can be determined using temperature sensors or pressure sensors, or ultrasonic sensors, or a magnetic inductive sensor or an X-ray device or a microphone. Particularly when monitoring the pressure development when starting the pump, a slow pressure increase can be assessed as a binder containing gas bubbles in the binder line.
  • the ventilation device is preferably arranged at local high points and places with volume flow changes, such as sharp-edged openings, pressure reducers, cross-sectional constrictions, where air bubbles can collect.
  • a venting device with a switchable valve is combined with a venting device with a passive venting valve, whereby when the device is started up, larger quantities of air are initially vented using the switchable valve and during normal operation the venting takes place exclusively or almost predominantly with the passive venting valve.
  • the binder line can have one or more pressure control valves, which open as pressure switching valves from a predetermined switching pressure and thus release a supply of binder to the atomizing nozzle (s) or also open as pressure control valves from a predetermined switching pressure and at the same time reduce the pressure on the outflow side of the pressure control valve to a predetermined pressure range regulate.
  • pressure control valves then have the additional function of a pressure reducer.
  • the binder line can be divided into different pressure zones. These pressure control valves preferably have different switching pressures.
  • the pressure control valves are arranged in the binder line in such a way that pressure zones are formed with pressure decreasing at a distance from the binder reservoir.
  • the plurality of pressure control valves can be arranged in a main branch of the binder line, so that the main branch is also divided into several pressure zones.
  • One or more pressure control valves can be arranged in a branch line of the binder line branching off from a main line, so that the respective branch line is closed when the switching pressure falls below the switching pressure. This prevents the main line from running empty and the respective pressure control valve is assigned to one or more atomization nozzles arranged in the branch line.
  • pressure differences in the binder line can be controlled and controlled in a targeted manner. Such pressure differences can be caused by height differences along the binder line, long line lengths and a resulting pressure drop, temperature changes in the binder line, pressure fluctuations due to switching processes.
  • the pressure control valves can be used to prevent the binder line from running empty, in particular the main line of the binder line, which means that a quick start-up is possible again after an operation stop, since at least the main line of the binder line is already filled with binder. This also prevents or reduces pressure surges.
  • the pressure control valves can also be integrated into atomization nozzles or arranged in combination with them.
  • Such atomizing nozzles close automatically below a predetermined closing pressure, thereby avoiding emptying of the binder line in the area of the atomizing nozzles.
  • the atomizing nozzles are often arranged in branch strands.
  • the pressure control valves preferably close automatically when the pressure falls below a predetermined closing pressure, so that they can independently shut off the individual zones of the binder line.
  • Such pressure control valves act as leak stops to prevent the binder line from running dry.
  • pressure reducers can also be used instead of pressure control valves, which are arranged in the corresponding lines.
  • Such pressure reducers can also be assigned to individual atomization nozzles or integrated into them. Such a pressure reducer reduces the pressure to a predetermined reduced pressure. This ensures that the binder with the constant, reduced pressure is applied to the atomizing nozzle, provided that the binder is present at an arbitrary, but higher, pressure in the area in front of the pressure reducer. The pressure in the line can therefore fluctuate and yet the binder is applied to the respective atomization nozzle at a predetermined pressure and a predetermined amount of binder and a predetermined spray profile are emitted from the nozzle.
  • Such a pressure reducer can be assigned to a single atomization nozzle or to a group of several atomization nozzles.
  • the binder line is preferably designed with an elasticity for elastic buffering of binder with an elasticity volume of 1 per mille and preferably at least 1% of the total volume of the binder line due to a pipe wall elasticity and / or at least one gas pocket and / or a pressure vessel with a gas cushion.
  • This elasticity volume is preferably at least 2% or at least 5% of the total volume of the binder line. Due to this elasticity, pressure fluctuations in the binder line can be compensated for without generating pressure shocks or the effects of pressure shocks are reduced.
  • plastic pipes in particular PE pipes, which are in particular made of soft polyethylene, are preferably used as the binder line.
  • the inside diameter of the tubes is preferably at least 16 mm.
  • the binder line preferably has a length of at least 100 m. It can be several kilometers long.
  • the binder line is preferably with the pressure control valves explained above in zones or sections with a length of 100 to 600 m, preferably 250 to 500 m. Such zones made of elastic tubes offer sufficient elasticity to dampen pressure peaks when closing shut-off devices, which include valves and nozzles, in such a way that they do not cause damage.
  • the PE pipes can also be made of hard polyethylene. Holes can simply be punched in pipes made of soft polyethylene to set nozzles or branch lines.
  • the maximum elasticity of the binder line is preferably 10% and in particular a maximum of 5% of the total volume of the binder line. Too much elasticity causes sluggish response and can mean that it is not possible to deliver the binder in short pulses.
  • the binder line can have a main line in which a pressure reducer is arranged, and a secondary line is arranged parallel to the main line, in which there is a check valve which opens counter to the flow direction of the pressure reducer.
  • a pressure reducer also acts as a check valve, so that a pressure peak that occurs on the pressure-reduced side of the pressure reducer cannot escape from the pressure-reduced zone through the pressure reducer.
  • the secondary strand preferably has a smaller diameter than the main strand.
  • the binder line preferably has elastic branch lines which are connected to a common line section or line section, with an atomizing nozzle being arranged at the end of the branch lines remote from the line section or line section. Due to the weight of the atomizing nozzle or an additional weight provided on it, the respective branch line automatically aligns itself vertically. This positions and adjusts the flexible branch line even if the entire dust control device is moved due to external circumstances such as wind.
  • a dust binding device can be designed both to generate an artificial mist and to wet the ground.
  • the binder line can be suspended on a support cable and the binder line can be designed to be elastic, the binder line being arranged approximately parallel to the support cable and being fastened to it in several places.
  • the binding agent line with or without elastic branch lines can be attached hanging to a rope with appropriate pipeline hooks.
  • a thin supporting cable in particular a steel cable, is sufficient, which is stretched over a certain distance, on which the binding agent line is suspended using the pipeline hooks.
  • the binder line is made of a plastic material into which holes can be pierced for connecting the branch lines. This piercing of the holes is also possible after the binding agent line has been hung on the support cable.
  • the atomizing nozzles can be arranged along the binder line at a distance of not more than 10 m, preferably not more than 8 m and in particular not more than 7 m.
  • the atomization nozzles for spraying the binder can be designed with a circular or circular segment-shaped spray cone, with the maximum distance between two adjacent atomization nozzles not being greater than 80% of the diameter of this circle.
  • this can ensure that when a binder line is refilled, the volume flow is initially limited in order not to build up too strong an impulse when the air present in the binder line is expelled, which would produce a corresponding one at the end of the refilling process would cause large pressure shock; Therefore, slow filling is an additional function of this valve.
  • the volume flow can be determined based on the pressure difference in the flow direction in front of and behind the filling rate control valve and/or the filling rate control valve can be additionally controlled by a control device, with the desired volume flow being adjustable.
  • the binder line can be provided with at least one filling control valve, which opens a passage approximately proportional to the filling state based on a detected filling state of the binder line.
  • This filling control valve works similarly to the filling rate control valve explained above and prevents an excessively high volume flow during refilling, which would cause a high pressure shock at the end of the refilling process.
  • the filling control valve can be designed with two opening stages, with the passage being only slightly open at a low filling state and the passage being completely opened at a high filling state.
  • the filling control valve can also be opened or closed continuously.
  • the binder line can have a pressure-maintaining valve, which opens approximately proportionally to the pressure based on a pressure detected in the binder line in the flow direction upstream of the pressure-maintaining valve.
  • a pressure-maintaining valve which opens approximately proportionally to the pressure based on a pressure detected in the binder line in the flow direction upstream of the pressure-maintaining valve.
  • the binder line has a main strand and a branch strand branching off from the main strand.
  • a control valve is provided in the branch line.
  • the control valve can be designed as a pressure relief valve that opens approximately proportionally to the pressure in the main line. If the pressure in the main line rises above a predetermined pressure, this leads to binder being drained away via the branch line.
  • the binding agent can be dispensed via atomization nozzles or via an empty line. This ensures that in There is no undesirably high pressure on the main line.
  • the pressure relief valve can only open from a predetermined minimum pressure in the main line.
  • the control valve in the branch line can also be designed as a quick release valve, which essentially opens completely from a predetermined minimum pressure in the main line, so that a rapid increase in pressure in the main line can be counteracted. After the pressure in the main line drops, the quick release valve can close more slowly than it opens, which allows pressure to slowly build up again in the main line.
  • the binder line can be connected to a well line, which leads from the binder line down into the underground well, a pump being arranged in the well line, and the control valve in the branch line being controlled in such a way that when the pump is switched on, the control valve over a predetermined time interval is gradually closed and/or is gradually opened over a further predetermined time interval when the pump is switched off.
  • a well line which leads from the binder line down into the underground well
  • a pump being arranged in the well line
  • the control valve in the branch line being controlled in such a way that when the pump is switched on, the control valve over a predetermined time interval is gradually closed and/or is gradually opened over a further predetermined time interval when the pump is switched off.
  • control valve When the pump is turned off, the control valve is gradually opened, gradually reducing the pressure in the binder line and counteracting pressure hammer.
  • the control valve is preferably opened shortly before the pump is switched off, so that there is already a reduced pressure in the binder line when the pump is switched off.
  • the binder line can have a control valve that is controlled by a control device in such a way that it slowly opens over a predetermined time interval when a pump is switched on and/or is closed when the pump is switched off.
  • This control valve reduces pressure surges when switching the pump on and off.
  • the control valve can be designed as a check valve that prevents backflow into or through the pump.
  • the control device of the control valve can also be designed to control the pump, so that the pump is switched on and off synchronously with the switching of the valve.
  • a control device which controls the supply of binder from the pressure vessel with gas cushion into the binder line depending on a fill level of the binder line, the fill level of the pressure vessel with gas cushion and/or the volume flow in the binder line.
  • This control device is preferably designed so that when the binder line is low, binder is withdrawn from the pressure vessel with a gas cushion at a high volume flow in order to quickly fill the binder line, with the flow of the binder being reduced or prevented when a higher level is reached To avoid pressure shock.
  • binder can be supplied to the binder line together with the pressure vessel with gas cushion and the pump, with the supply from the pressure vessel with gas cushion being reduced or completely stopped as the fill level increases and the delivery rate of the pump being adjusted accordingly and preferably reduced.
  • the filling level of the pressure vessel with gas cushion can be determined based on the gas pressure, the binder pressure, using an ultrasonic sensor or a volume flow measurement.
  • the volume flow measurement can be carried out using a volume flow measuring device described above.
  • One or more cyclone filters can be arranged in the binder line, which has a flushing supply line and a flushing outlet line with a flushing outlet valve, so that when a flow of binder is stopped through the cyclone filter, flushing of the cyclone filter is possible without the remaining sections of the binder line having to be emptied.
  • a pressure vessel with a gas cushion and/or an external water pressure connection can be connected to the flushing supply line.
  • the cyclone filter can then also be installed in a suction line and flushed while the pump is operating.
  • the suction line is a line section which is arranged in front of a pump in the flow direction. Placing a filter in the suction line ensures that the binder is filtered before it reaches the pump.
  • the dust binding devices explained above can be used to bind dust, the individual aspects can be used separately or in combination.
  • Such a dust binding device can be used to create an artificial fog, which then binds the dust in the air.
  • a dust binding device can also be used to wet a floor, whereby the dust is then bound to the floor and can no longer be thrown into the air.
  • the binding agents are preferably discharged at intervals with spray phases and pause phases.
  • the spray phases and the pause phases are at least 2 minutes, or 5 minutes, preferably at least 10 minutes.
  • the spray phases preferably last no longer than an hour and in particular no longer than 30 minutes.
  • the pause phases can last approximately the same length as the spray phases. However, the pause phases can also be longer and, in particular, a multiple of the spray phases.
  • the duration of the spray phases and the pause phases is preferably not more than 120 seconds and in particular not more than 30 seconds.
  • the duration of the spray phases and the pause phases can last a few seconds.
  • the spray phases are preferably longer than the pause phases.
  • the pause phase is chosen to be so short that there is no or only a very small gap between successive clouds of fog. The slower the air flow in which the artificial fog or artificial fog cloud is located, the longer the pause phase can be.
  • the pause phase is preferably not longer than 5 seconds.
  • the pause phase can also be set longer. If it is desired to use as little binder as possible, for example to avoid soil waterlogging, it is also possible to keep the spray phases as short as possible and to extend the break phases. This needs to be determined empirically.
  • the measures explained above such as elastic storage capacity in a pressure vessel or in elastic lines and / or the provision of pressure control valves in or close to the atomization nozzles, are advantageous, as this means that even with a strand with a length of at least Such interval operation is possible for 50 meters and in particular at least 200 meters.
  • the spray phase is preferably longer than the pause phase.
  • the spray phase can in particular be twice as long as the pause phase or be a multiple of it.
  • the dust binding device is operated so that the binding agent is operated at a rate of not more than 6 l/m 2 h and preferably not more than 4 l/m 2 h and preferably not more than 3 l/m 2 h. If the floor is sealed, then these spray rates are even smaller and are preferably not more than 1.2 l/m 2 h or not more than 1 l/m 2 h and preferably not more than 0.8 l/m 2 h .
  • the dust binding device for generating an artificial mist is preferably operated in such a way that the binding agent is sprayed into an area which is so far away from the dust source that the air flow in this area is not greater than 1 m/s, in particular not greater than 0. 8 m/s and preferably not greater than 0.7 m/s. It is particularly advantageous if the air flow is not greater than 0.5 m/s.
  • the device according to the invention is used to bind dusts of various origins, in particular mineral dusts, plastic dusts, wood dusts, etc of air pollutants using precisely applied binding agents.
  • Dust in the sense of the present invention is all solid and liquid particles in an atmosphere which can be removed from the atmosphere with a binder or which can be bound to the ground with a binder so that they do not enter the atmosphere.
  • dust can also include aerosols or vapors.
  • the binder is preferably water.
  • the water is generally used without any additional additives, especially without wetting agents. It may only be useful to add antifreeze in winter operation.
  • the water can be obtained from different sources, for example wells, drinking water pipes, cisterns or the like. If the water contains impurities, it is advisable to provide a filter.
  • the pore size of the filter should not be larger than 200 ⁇ m, preferably not larger than 150 ⁇ m. It may also be appropriate to use filters with a pore size of 130 ⁇ m.
  • a first exemplary embodiment of a dust binding device 1 for a mining site is shown in Figure 1 shown.
  • the mining site can be a gravel works for mining gravel or a quarry for mining stones.
  • the mining site is a gravel works.
  • the gravel works has an unpaved road 2, which leads via a ramp 3 into a gravel pit 4.
  • This gravel pit 4 has a screening device 5 and a conveyor belt section 6.
  • the conveyor belt route 6 extends from a feed hopper 7, which is located in the gravel pit 4, to a processing building 8, which is located outside the gravel pit 4.
  • the conveyor section 6 is formed from several conveyor belts, with two adjacent conveyor belts each forming a transition point 9 at which the gravel to be transported falls from one conveyor belt onto another conveyor belt.
  • the screening device 5, the feed hopper 7 and the transition point 9 of the conveyor belt section 6 form strong sources of dust. In gravel pits and quarries, all places where gravel or stones are moved and dumped are potentially intense sources of dust. Other sources of dust include stone crushers, silos and piles of gravel or stones piled up with conveyor belts, as well as manipulation areas.
  • Whether a specific area is to be assessed as a dust source where the dust has to be bound also depends on what dust cleanliness requirements exist in the adjacent neighborhood.
  • the gravel works shown are agricultural areas, such as meadows or fields, adjacent to the in Figure 1 lower edge and right edge of the gravel works. Such agricultural areas place high demands on dust cleanliness, because grass or crops contaminated with dust are impaired in quality and significantly reduce the benefits.
  • the gravel works shown are adjacent to the upper and left edge of industrial areas, which are only slightly sensitive to dust.
  • the dust binding device 1 includes a wetting device 10 for wetting the route 2 and the ramp 3 with binding agent, several local fog shielding units 11 and two fog walls 12.
  • the fog shielding units 11 are intended to shield the local dust sources in the gravel pit 4.
  • the smoke walls 12 are located in Figure 1 at the bottom and right edge of the gravel pit 4 to prevent the transfer of dust from the gravel pit 4 to the neighboring agricultural areas.
  • the wetting device 10 has pipe sections 13/1 and 13/2 running on both sides next to the track 2. These pipe sections 13/1 and 13/2 are rigid pipes 13 ( Figure 3 ), at which a vertically upwardly extending standpipe 14 branches off at regular intervals (e.g. every 5 to 10 m, preferably every 6 to 8 m).
  • the standpipes 14 each have a length of 0.5 to 2 m.
  • a manually operable shut-off valve in particular a ball valve, is arranged on the standpipe 14 adjacent to the atomizing nozzle 15, with which the water supply to each individual atomizing nozzle 15 can be switched on or off separately can.
  • the atomizing nozzles 15 are preferably designed as pressure nozzles, which only open automatically above a predetermined opening pressure and close automatically below a predetermined closing pressure. On the one hand, this ensures that binder only emerges when it is applied to the atomizing nozzle 15 with sufficient pressure for atomization. Furthermore, through this Automatic closing of the atomizing nozzles 15 ensures that the standpipe 14 and the pipe section 13 do not empty when the wetting device 10 is not in operation. This avoids refilling the pipe sections 13 and the standpipes 14, which means that on the one hand the risk of pressure shocks can be significantly reduced and on the other hand operation can be permitted without any significant time delay. In addition, this prevents unevenness in the application of binder, which can occur if the line is partially or completely drained.
  • the atomization nozzles 15 are designed such that the binder is atomized with a droplet size that corresponds to a fine spray.
  • the droplet size is subject to a certain distribution, with the majority of the droplets having a droplet size of at least 100 ⁇ m, preferably at least 150 ⁇ m or at least 200 ⁇ m. They produce a fine spray that is spread evenly over a predetermined area ( Figure 1 ) semicircular or circular or circular segment-like (e.g. a circular segment with 90° or 125° respectively) or can be distributed angularly.
  • the proportion of binder that evaporates during spraying is small.
  • the droplets can be sprayed from the atomizing nozzle 15 to a distance of approximately 5 to 12 m.
  • the atomizing nozzles 15 are designed with a semicircular spray pattern and are arranged so that they cover the adjacent roadway 2 with this spray pattern ( Figure 4 ).
  • the operating pressure at the nozzle is around 2.5 to 4.5 bar to ensure reliable spread of the spray.
  • interval operation with a spraying time of around 5 to 15 minutes and a break of around 5 to 30 minutes, whereby the break should be at least as long as the spraying time, leads to efficient wetting.
  • the break times are preferably automatically adjusted to the weather conditions. The hotter and drier the ambient air is, or the more wind there is, the shorter the breaks should be.
  • the spray time for wetting a floor can also be controlled depending on the substrate.
  • a sealed floor such as an asphalt floor, cannot absorb a significant amount of binder.
  • intermittent operation with a spraying time of around 5 to 15 minutes and a break of around 5 to 30 minutes without intensive pre-wetting is therefore preferred.
  • the soil is not sealed, then it usually has porosity, which can store binder and release the stored amount of binder.
  • the soil then forms a binder reservoir similar to a sponge.
  • intensive pre-wetting is preferably first carried out, which lasts at least 30 minutes, preferably at least 45 minutes and in particular at least 1 hour, with binding agent being released at a rate of 1 to 3 l/m 2 .
  • Intermittent operation can then be carried out with short spray times of approximately 2.5 to 10 minutes at a rate of 1 to 3 l/m 2 and breaks of approximately 5 to 30 minutes to replace binding agent released from the ground.
  • the control of the spray times is preferably carried out automatically by means of a central control device.
  • the central control device can automatically set the spray times depending on predetermined weather parameters (amount of precipitation, temperature, wind speed, humidity, intensity of solar radiation).
  • the weather parameters can be supplied using suitable weather sensors (thermometer, wind gauge, precipitation gauge) or weather data available via the Internet.
  • soil moisture can also be measured and taken into account when controlling the spraying time. Taking soil moisture into account is particularly useful for dust binding devices that wet the soil with binding agents to prevent dust. These dust binding devices are primarily used on porous floors where dust can be whirled up. Depending on the porosity, these soils have a different capacity to absorb water. Accordingly, the threshold values for soil moisture must be determined and adjusted empirically. Measuring soil moisture can also be useful with dust-binding devices that generate fog. Here, measuring the soil moisture is used to determine whether too much moisture has reached the ground and whether there is a risk of puddles forming.
  • the above-mentioned weather parameters and/or soil moisture are preferably combined in such a way that they are a measure of evaporation.
  • the evaporation rate can be determined by the combination of humidity, wind speed, temperature and intensity the solar radiation can be represented.
  • the spray times are preferably regulated in such a way that the evaporated moisture is tracked as precisely as possible.
  • Such a control device serves to ensure sufficient binding of dust and, on the other hand, to keep the need for binder, in particular the need for water, as low as possible.
  • This control device is shown here for an exemplary embodiment for wetting the soil with binder.
  • Such a control device can also be used to bind the dust using artificial fog.
  • the maximum length of such a wetting device is approximately 500 m. If longer distances are to be wetted, then several such wetting devices can be provided in succession.
  • a hanging wetting device 10/2 is provided along the ramp 3.
  • the hanging wetting device 10/2 comprises a thin support cable 16, which is a steel cable, a pipeline 17, pipe hooks 18 with which the pipeline 17 is suspended on the support cable 16, flexible branch lines 19 and atomization nozzles 20.
  • the atomization nozzles 20 are similar to the atomization nozzles 15 trained. However, they have a fully circular spray pattern, so that the wetting device 10/2 can be positioned centrally above the ramp 3 and covers the ramp completely or at least almost completely with the spray pattern.
  • a flexible branch line 19 with an atomizing nozzle 20 is arranged on the pipeline 17 approximately every 5 to 7 m.
  • the atomizing nozzles 20 are preferably again designed as pressure nozzles, which open from a predetermined opening pressure and close automatically from a predetermined closing pressure.
  • the opening pressure is in the range of 1.5 to 4 bar.
  • the closing pressure is slightly lower in each case.
  • the maximum length of the wetting device 10/2 is approximately 500 m.
  • the wetting device 10/2 is preferably operated at intervals of 10 to 15 minutes with break times of 10 to 30 minutes.
  • the wetting device 10/2 is preferably arranged at a height of at least 5 to 6 m above the ground.
  • the pipeline 17 is preferably made of a plastic tube, in particular polyethylene tube. It has an inside pipe diameter of, for example, 16 to 40 mm.
  • the fog shielding units 11 are basically designed in the same way as the hanging wetting device 10/2 with a support cable 16, a pipeline 17, pipeline hooks 18, flexible branch lines 19 and atomization nozzles 21 ( Fig. 5 ).
  • the atomization nozzles 21 of the fog shielding units 11 differ from the atomization nozzles 20 of the wetting device 10 in that they spray the binder much more finely, that is, with a droplet size of 30 to 120 ⁇ m.
  • the droplet size is preferably 50 to 100 ⁇ m, in particular 60 to 90 ⁇ m. Such fine droplets form a mist that gradually settles to the ground. Such fine droplets cannot be sprayed as far as the larger droplets of the wetting device 10 explained above.
  • the maximum range here is approximately 1.5 m.
  • the atomization nozzles 21 are arranged with their flexible branch lines 19 at a distance of 0.7 to 1.5 m, in particular at a distance of 0.9 to 1.2 m on the pipeline 17.
  • the nozzles of the two fog shielding units 11 are then preferably arranged offset from one another in the longitudinal direction.
  • the pipe 17 is preferably made of a flexible plastic, such as soft polyethylene. Holes can be pierced in such a pipeline 17 in order to connect the branch lines 19. This can also be done subsequently after the entire installation of the system, which makes it possible to provide several atomizing nozzles 20 locally on a line if necessary. If a particularly dense fog is required locally, the distance between the atomizing nozzles can be reduced to 0.5 m or 0.25 m or even to 0.1 m. Likewise, it is possible to subsequently remove atomizing nozzles 21 or a branch line 19 together with the corresponding atomizing nozzle 21 and to close the corresponding opening with a plug. This allows subsequent changes to be made to the system.
  • a flexible plastic such as soft polyethylene
  • the operating pressure is around 3 to 6 bar.
  • Such a fog shielding unit 11 can be operated in continuous operation. However, it can also be expedient to operate such a fog shielding unit with very short pulses of 1 second to 120 seconds and correspondingly short pauses of 1 second to 120 seconds, since the floating ability of the fog means that a permanent fog wall is provided even with such pulsed operation can. With such pulsed operation, the consumption of binder can be significantly reduced without compromising the ability to bind dust. Such pulsed operation is particularly advantageous in places where there is no or only very low air flow.
  • the fog walls 12 are designed in the same way as the fog shielding units 11, but they comprise one or more parallel pipes which extend over a longer distance and are provided with atomization nozzles 21 at regular intervals throughout.
  • the pipes 17 can also be arranged vertically one above the other ( Figure 7 ), so that a smoke wall with a height of a few meters is formed.
  • seven pipes 17 are arranged one above the other at a distance of 1 m, so that a smoke wall with a height of seven meters is formed.
  • Both the fog shielding unit 11 and the fog wall 12 are arranged with respect to a dust source so that the fog is generated not at the dust source but at a distance from the dust source.
  • a dust source At the point where the dust is generated, there is usually a strong air current that stirs up the dust. Applying mist to such a dust generation point would only result in the mist being moved away again due to the air flow and a large proportion of the binder would remain ineffective. Therefore, the mist is placed adjacent to the dust generation site in a place where the air is calm. Here the dust can be bound much more efficiently.
  • the air flow is preferably limited to a maximum of 1 m/s, in particular 0.8 m/s or 0.7 m/s and preferably to a maximum of 0.5 m/s. The distance of the area in which the artificial fog is located from the place where the dust is generated is therefore chosen so that this limit value is adhered to.
  • the fog shielding units 11 are preferably designed so that they enclose the dust source as completely as possible. If the dust source is already shielded by a mechanical wall, then it can also be expedient to design the fog shield in such a way that its ends end flush with this wall and thus enclose the dust source together with the wall and in particular the dust is drawn away along the wall and beyond that prevented.
  • the fog shielding unit thus forms a wall closure.
  • the fog wall 12 preferably has a channel 22 for collecting the fog droplets.
  • the water collected is directed to a tank 23, from which it is pumped back into the pipe 17 of the fog wall by means of a pump 24.
  • the binder is thus transported in the circuit.
  • a filter 25 is provided, with which the dust particles are removed from the Water must be removed.
  • the water once used can of course also be discarded, in which case no filter needs to be provided.
  • the dust binding device 1 has a central source of binding agent 26, which can be, for example, a well ( Fig. 2 ).
  • the binder is preferably pure water.
  • the water is withdrawn from the binder source 26 by means of a pump 27.
  • a line section 28 which extends from the binder source 26 to the pump 27, there is a manual shut-off valve 29 and a check valve 30, which prevents the water from flowing back into the binder source 26 in the event of a pump failure.
  • a main line 31 leads to the wetting device 10, to the fog shielding units 11/1 and 11/2 and to the fog walls 12/1 and 12/2.
  • a main line branches off from the main line 31 to the wetting device 10, to the fog shielding units 11/1, 11/2 and to the fog walls 12/1 and 12/2.
  • Switching valves 32/1 to 32/5 are arranged on the main lines and can be individually actuated by a central control device 38. The switching valves 32/1 to 32/5 can be used to switch the water supply to the individual main lines on and off.
  • interval operation with a spray time of approximately 5 to 15 minutes and a break of approximately 5 to 30 minutes can be carried out on the wetting device 10 and by actuating the switching valves 32/2 to 32/5 can be carried out on the fog shielding units 11/ 1 and 11/2 or on the smoke walls 12/1 and 12/2 the short pulses of 1 second to 120 seconds are carried out with correspondingly short pauses of 1 second to 120 seconds.
  • a wetting device 10 branches the main strand into two sub-strands for the lying wetting device 10/1 and the hanging wetting device 10/2.
  • a pressure reducer 33/1, 33/2 is arranged at the beginning of each of the two branch lines, which reduces the pressure provided by the pump 27 to the operating pressure of the respective wetting device 10/1 or 10/2.
  • a pressure reducer 33 is also arranged in the main strands of the fog shielding units 11/1, 11/2 and the fog walls 12/1 and 12/2 in order to set the operating pressure suitable for the respective atomization nozzles 21 here too.
  • additional pumps can also be provided, which then generate a higher pressure, especially for the fog shielding units 11/1, 11/2, so that the operating pressure of the main pump 27 can be reduced. This is therefore another, decentralized binder feed.
  • a branch strand 34 branches off from the main strand of the fog shielding unit 11/1 and encloses the screening device 5.
  • the atomizing nozzles 21 are arranged at a predetermined distance of 0.5 to 1.5 m from the screening device 5, which forms a strong dust source, so that a fog wall forms around the dust source at this distance.
  • further branch lines 35, 36, 37 are provided on the second fog shielding unit 11/2 in order to enclose the feed hopper 7 and the transition points 9 at a suitable distance.
  • the line section 28 can also be designed as a well line ( Figure 13 ).
  • the well pipe 28 extends deep into the ground through a vertical well bore 58.
  • a deep pump 59 is arranged in the well bore 58 instead of the pump 27 and is coupled to the well pipe 28 in order to pump water from the well bore 58 into the dust binding device 1.
  • a branch line 60 is provided, which branches off from the line section 28 and has a drain opening 61.
  • There is a control valve 62 in the branch line 60 which can be controlled by a central control device.
  • a shaft or a concrete underground storage facility can also be provided.
  • control valve 62 When the pump is switched off, the control valve 62 is gradually opened, whereby the pressure in the line section 28 is gradually reduced and counteracts a pressure shock.
  • a control valve is preferably opened shortly before the pump is switched off, so that when the pump is switched off there is already a reduced pressure in the line section 28, which reduces the risk of a pressure shock.
  • the control valve 62 can also be designed as an automatically opening pressure control valve that opens at a predetermined opening pressure. This opening pressure is greater than the operating pressure. In the event of a sudden failure of the Pump 59 creates a pressure peak in line section 28, which is diverted via the automatically opening pressure control valve 62. Due to reflections, several successive pressure peaks can occur, which are derived one after the other via the branch line 60.
  • this or another valve it is also possible for this or another valve to open suddenly in the event of a pump failure in order to immediately drain off pressurized binder or to enable drainage for the following pressure peak - so it is already open before the pressure peak occurs - so there is no need for detection of this Pressure peak occurs through the valve. It is also possible that this valve or another valve allows air or other media to flow in in order to counteract the development of a cavitation shock.
  • Figure 8 shows masts with tension cables 56 for fixing the support cables 16.
  • the support cables can also be fixed directly to any other elevation, such as a building 57 ( Fig. 9 ).
  • Figure 10 shows the wiring diagram of a second exemplary embodiment of the dust binding device 1.
  • the same parts as in the first exemplary embodiment are designated with the same reference numerals and are designed in the same way as in the first exemplary embodiment, which is why a detailed description of these parts can be omitted.
  • This dust binding device 1 in turn comprises a binder source 26 or binder reservoir, a pump 27, which conveys binder, in particular water, from the binder source 26 via a line section 28.
  • a line section 28 In the line section 28 there is a manual shut-off valve 29 and a check valve 30.
  • a filter 39 is arranged in the line section 28.
  • the filter can be provided with a filter medium that has a pore size of 130 ⁇ m.
  • a filter without a filter medium such as a cyclone filter, may be provided.
  • a main line 31 leads from the pump 27 to a wetting device and/or to a fog shielding unit or a fog wall. These facilities each have at least one line harness with one or more atomization nozzles. Therefore, these devices are generally referred to below as nozzle train 40.
  • the second exemplary embodiment has two such nozzle strands 40, each of which begins with a switching valve 32.
  • a pressure vessel with a gas cushion 41 is connected to the line 31 leading to the nozzle strands 40.
  • a thin supply line 42 and a thick discharge line 43 lead from the line 31 to the pressure vessel with gas cushion 41.
  • the discharge line 43 preferably has a diameter that is at least twice and in particular four times as large as the supply line 42.
  • the supply line 42 it is also possible for the supply line 42 to only act as a supply line if, for example, it contains a throttle element that is only continuous in one direction.
  • the pressure vessel with gas cushion can be emptied much faster than filling it.
  • the switching valve 45 in line 31, which is controlled by the central control device 38.
  • the switching valve is arranged in the flow direction after the pressure vessel with gas cushion 41.
  • the switching valve 45 has several opening positions, so that a different opening cross section can be set by means of the switching valve 45.
  • the opening cross section can be changed in several stages or even continuously.
  • a volume flow measuring device 46 is arranged, which is connected to the central control device 38 and transmits the current volume flow to it.
  • Another volume flow measuring device 48 is arranged in at least one of the nozzle strands 40.
  • a switching valve 47 which can be controlled by the central control device 38, is provided for emptying the nozzle line 40.
  • this dust binding device 1 of the second exemplary embodiment works in the same way as that of the first exemplary embodiment, in that water is sucked in from the binder source 26 with the pump 27, fed to the nozzle strands 40 and controlled there by the switching valves 32 via atomizing nozzles (not shown in Figure 10 ) is output.
  • the switching valve 47 at the end of one of the nozzle lines 40 has two functions. If this dust binding device 1 is to be operated in winter, then if there is a risk of frost, the nozzle train 40 can be emptied by opening the switching valve 47 and air is conveyed into the switching train 40. The air can be provided using a compressed air source or a suitable pump. If the binding agent or the water contains impurities, then these generally collect at the end region of the nozzle strands 40. These impurities can be flushed out by opening the switching valve 47 and rinsing the nozzle strand 40 with water.
  • Both the emptying of the nozzle train 40 and the rinsing of the nozzle train 40 are controlled by the central control device 38.
  • the pressure vessel with gas cushion 41 can be a membrane vessel that has a membrane that divides the membrane vessel into a gas pressure space and a binder space.
  • the gas in the gas pressure chamber is compressed, which increases the pressure in the pressure vessel with gas cushion 41. If one or more nozzle strands 40 are emptied, they must be completely filled again before operation can begin.
  • a large volume of binder can be made available quickly. Due to the large cross section that is available when the binder is removed from the pressure vessel with a gas cushion through the discharge line 43 and the feed line 42, the binder can be conveyed to the nozzle strands 40 quickly, that is, with a high volume flow.
  • the use of the pressure vessel with gas cushion 41 is advantageous because when the binder is removed from the pressure vessel With gas cushion the gas pressure space expands, whereby the pressure in the pressure vessel with gas cushion 41 decreases and decreases with increasing removal from the pressure vessel. This means that initially the binder is conveyed from the pressure vessel 41 at a high pressure towards the nozzle strands 40, with this pressure and thus the flow velocity decreasing. This reduces the risk of a pressure surge somewhat. At the same time, at the beginning of the delivery, a large amount of binder is made available very quickly from the pressure vessel with gas cushion 41, so that emptied nozzle strands 40 can be quickly refilled.
  • the lines are elastic plastic lines, then these lines also form a binder buffer.
  • the “buffer” of the lines is first filled from the pressure vessel, which counteracts a pressure shock when the line is filled quickly.
  • the combination of a pressure vessel with a gas cushion and elastic plastic pipes is therefore particularly advantageous.
  • the volume flow supplied by the pump 27 and the pressure vessel with gas cushion 41 through the line 31 is measured with the volume measuring device 46.
  • the control device that detects this volume flow can use this volume flow to adjust the pumping power of the pump 27 and/or the opening cross section of the switching valve 45. If a maximum permissible volume flow is exceeded, the pump power of the pump 27 can be reduced and/or the opening cross section of the switching valve 45 can be reduced, whereby both the volume flow from the pressure vessel with gas cushion 41 and the volume flow generated by the pump 27 can be controlled.
  • the pressure in this line section can be controlled by the pumping power of the pump 27 and the opening position of the switching valve 45 so that water flows into the Pressure vessel with gas cushion 41 flows when the pressure in this line section is greater than in the pressure vessel with gas cushion 41 and water is withdrawn from the pressure vessel with gas cushion 41 when the pressure in this line section is lower than in the pressure vessel with gas cushion 41.
  • an equilibrium is established between these two pressures, so that the The filling level of the pressure vessel with gas cushion 41 remains constant.
  • the supply line 42 has a small cross section, the volume flow when filling the pressure vessel with gas cushion 41 is correspondingly small, so that even with a slightly filled pressure vessel with gas cushion 41 and with the nozzle strands 40 not yet completely filled, it is possible to use the main part of the to direct the volume flow conveyed by the pump 27 to the nozzle strands 40.
  • the pressure vessel with gas cushion 41 is filled with binder or water, then a large amount of water can be quickly supplied to the nozzle strands 40 by opening the switching valve 45.
  • 40 fill level sensors are arranged in the nozzle strands.
  • the nozzle strands 40 can each have a fill level sensor at their end regions. They can, however, also have several level sensors distributed over their length.
  • the fill level sensors are connected to the central control device 38, so that the central control device 38 can detect the fill levels of the nozzle strands 40.
  • the filling levels can be taken into account when controlling the opening position of the switching valve 45 and the pumping power of the pump 27 and the more fully the nozzle strands are filled with binder, the more the volume flow or the flow rate is reduced.
  • the volume flow measuring device 48 arranged in the nozzle train 40 is used to monitor the functionality of this nozzle train. If this nozzle train has a leak, for example, then the volume flow in this nozzle train increases. It is detected by the volume flow measuring device 48. An error message can be output and at the same time this nozzle line can be switched off using the corresponding switching valve 32. However, if one or more atomization nozzles are blocked, the corresponding volume flow will be reduced. This can also be determined using the volume flow measuring device 48 and a corresponding error message can be output.
  • the volume flow measuring device 48 arranged in one of the nozzle strands 40 can also be used to detect volume flows that are too high, which can cause a risk of pressure shock. Then, based on this detected volume flow in one of the nozzle strands 40, the total volume flow, which is controlled by means of the switching valve 45 and the pump power of the pump 27, can be reduced accordingly.
  • Such volume flow measuring devices 48 are preferably arranged in all nozzle strands 40, so that all nozzle strands 40 can be monitored individually.
  • volume flows in the dust binding device 1 can be recorded and logged using the volume flow measuring devices 46, 48. This makes it possible to see later whether the dust binding device 1 was in operation correctly at a specific time.
  • the fill level sensors explained above can also be designed as pressure switches, which only output a signal above a predetermined pressure. This not only detects whether the nozzle strands 40 are filled with binder, but also whether the filling has a certain pressure at the location of the corresponding pressure switch.
  • the switching threshold of these pressure switches should be slightly lower than the operating pressure of the atomization nozzles in the nozzle strands 40. Suitable threshold values for the pressure switches are preferably in the range from 1.5 bar to 3 bar.
  • atomizing nozzles with increasingly low operating pressure (opening pressure and closing pressure) as the distance from the binder source 26 increases, since the pressure in the nozzle strand 40 can decrease with increasing distance.
  • the individual atomizing nozzles therefore have a low opening or closing pressure as the distance from the binder source 26 increases.
  • the pressure threshold of the pressure switches near the corresponding atomization nozzles must be adjusted accordingly to the opening or closing pressure of these atomization nozzles.
  • the nozzle strands 40 can also be specifically adjusted in pressure zones.
  • the pressure zones can, for example, be designed with reduced pressure as the distance from the binder source 26 increases, so that different but defined pressure conditions exist in the individual pressure zones. With such a pressure setting, a very high uniformity of application can be achieved.
  • the pressure applied to the respective nozzles can be permanently maintained at a defined value, regardless of whether it is the first, the last or any nozzle in between on a line.
  • the nozzles are preferably designed as pressure nozzles with a predetermined opening and/or closing pressure, as explained above.
  • the central control device 38 can be designed such that it delays switching the pump 27 on and off. This is particularly useful if the pump power of the pump 27 cannot be gradually adjusted. Switching the pump 27 on and off can cause cavitation problems in the pump or its associated components and can create a pressure surge in the lines. If switching off is delayed by a predetermined period of time, then it may be that the operating states have changed again in the meantime, so that the pump 27 should no longer be switched off. Such situations occur especially when the controlled variables, such as volume flow, fill level and/or pressure in the line 31 or in the nozzle strands 40, are close to the corresponding threshold values and fluctuate around them.
  • the dust binding device 1 is designed with a certain elasticity for the elastic buffering of binder, so that even when the threshold values are reached, it is still possible to continue the operation of the pump 27 and to further pump a certain volume or, due to the existing elasticity, to binder without a pumping power To provide pump 27 for the nozzle strands 40.
  • This elasticity is provided, for example, by the pressure vessel with gas cushion 41.
  • such elasticity for elastic buffering of binder can be provided by pipes made of an elastic plastic material, in particular polyethylene, since this material can stretch within certain capacities and accommodate binder in an elastically yielding manner.
  • the time delay is implemented in the central control device 38. It is of course also possible to provide a separate time delay element, in particular a time delay relay, which delays the switching on and/or off of the pump 27 independently of the central control device 38.
  • one or more pressure sensors can be provided in the main line 31 and/or in the nozzle strands 40, which are connected to the central control device 38.
  • the pressure values recorded with the pressure sensors can in a similar manner to the volume flows described above for controlling the volume flow in the main line 31 by means of the switching valve 45 and the pump 27.
  • the control valve 45 and the pump power of the pump 27 are switched or changed when the measured pressure values exceed and/or fall below predetermined threshold values.
  • predetermined safety thresholds may be provided which are greater than the thresholds for controlling normal operation.
  • the pump 27 is arranged between the check valve 30 and the pressure vessel 41.
  • the pump 27 can of course also be arranged under water in the binder source 26.
  • volume flow meters for measuring high volume flows are complex and expensive. It is therefore advisable, particularly in the areas of high volume flows, to have a secondary line 49 ( Figure 11 ) to a main strand 50, the secondary strand being a line with a smaller cross section than the line of the main strand 50 and opening into the main strand 50 with both ends.
  • the volume flow measuring device 51 which measures the volume flow through the secondary line 49, is arranged in the secondary line 49. Since the volume flows through the main strand 50 and the secondary strand 49 are in a certain ratio, which corresponds to the ratio of the cross section of the secondary strand 49 to the cross section of the main strand 50, the volume flow measured in the secondary strand 49 can be used to calculate the total volume flow through the secondary strand and the main strand getting closed.
  • Such an arrangement of the volume flow device is particularly advantageous in the main line 31, since there are high volume flows here.
  • an additional flow monitoring device can be provided in the main strand 50, which only indicates whether there is a flow or whether there is no flow.
  • a flow monitoring device can be used, for example, with a baffle plate flowmeter be. This can be used to determine whether there is a flow in the main line, even if the secondary line is blocked.
  • the nozzle strands 40 can be divided into separate pressure zones using pressure reducers.
  • pressure reducers 53 generally act like a check valve and only allow flow from the side with higher pressure to the side with lower pressure. However, if short-term pressure peaks arise, then they can reach the area with lower pressure or, for example, they can arise directly in the low-pressure area due to switching processes and can no longer escape from there, since water cannot flow back through the pressure reducer 53. It may therefore be the case that there are significantly higher pressures in pressure zones than the usual operating pressure in the respective pressure zone. This can lead to damage.
  • a secondary line 49 in which a check valve 54 is arranged, which allows a flow from the pressure-reduced side of the pressure reducer 53 to the side with higher pressure, then such pressure peaks can come from the Pressure zones escape ( Figure 12 ).
  • the central control device 38 can be connected to sensors or online weather services that record the current weather (temperature, humidity, amounts of precipitation (predicted and already fallen), wind speeds, wind direction, humidity, evaporation) and accordingly control the discharge of binder. It may also be expedient for the control device 38 to receive digital weather information in order to control the application of the binder accordingly. For example, it has been shown that in summer it makes sense to wet the ground using a wetting device at the end of a cool night or in the morning, since significantly less atomized water evaporates when the air is cool than later in the day when it is hotter. Such intensive wetting makes sense especially for unsealed floors.
  • the device can also be provided with sensors which detect vehicles and/or people, so that areas of the device are switched on or off in accordance with the output signals of these sensors. For example, if vehicles or people are briefly in an area to be sprayed or provided with fog, the supply of binder can be temporarily switched off locally so that the vehicles or people are not sprayed.
  • These sensors can be optical sensors, in particular cameras, or induction coils embedded in the ground to detect vehicles. The local switching on or off of areas can be carried out, for example, in a device in which the atomization nozzles and/or certain pipe sections are provided with switchable valves or separate pumps.
  • sensors can also be provided with which the moisture of the soil, fog and/or dust formation are detected.
  • These sensors can be humidity sensors or optical sensors such as cameras. Corresponding camera images can be automatically analyzed using optical image processing to determine whether the ground is moist, there is fog in the atmosphere and/or a dust cloud is present.
  • These optical sensors can be combined with special lighting devices that make corresponding dust particles easily visible.
  • the intensity of dust binding can be controlled, and locally different intensities of dust binding can also be set depending on the sensor signals.
  • the operating states and/or the sensor signals are preferably logged and archived. In this way, on the one hand, the operation of the device can be documented, and on the other hand, the dust condition can be displayed if there are sensors that detect the dust condition.
  • recommendation messages can also be output to an operator on a corresponding output device (screen, loudspeaker), so that the operator of the device can trigger a corresponding dust control.
  • a dust binding device with a standing arrangement of several atomizing nozzles 15 according to Figure 3 is designed to wet an approximately strip-shaped surface.
  • the spray cones of these atomizing nozzles 15 are semicircular ( Figure 4 ).
  • the radius of the spray cones is 6.4 m and the operating pressure is 3.5 bar.
  • a single atomizing nozzle 15 sprays an area of approximately 64 m 2 and consumes approximately 190 liters of binder or water per hour of continuous operation.
  • the soil is wetted with around 3 liters per square meter per hour.
  • the consumption of binder per hour can be reduced to approx. 50-70 liters per hour and nozzle.
  • the atomizing nozzles 15 are arranged at a distance of approximately 7 m from one another.
  • a further embodiment of the atomizing nozzle 15 has a throw distance of 9 m at an operating pressure of 3.5 bar. Otherwise, this embodiment of the atomizing nozzle corresponds to the vertical arrangement of atomizing nozzles explained above Figure 3 and 4 with semicircular spray cones.
  • the wetted area per nozzle is approximately 130 m 2 and the consumption of binder or water is approximately 470 liters per hour per nozzle. This results in a precipitation rate of approximately 3.6 liters per/m 2 per hour in continuous operation.
  • Open natural soils such as gravel, gravel and sand can store water in contrast to sealed soils.
  • the throwing distance is 4 meters and the throwing cone forms a full circle.
  • the operating pressure is in the range of 2 to 3 bar.
  • the area wetted per atomizing nozzle 20 is approximately 50 m 2 and the consumption of binder is approximately 70 liters per hour and per nozzle.
  • the throwing distance is 4.8 m, with the throwing cone again forming a full circle.
  • the operating tension is in the range of 1.5 to 4.5 bar.
  • the wetted area is approximately 72 m 2 and consumption is approximately 70 liters of binder per hour per atomizing nozzle. This results in a precipitation rate of approximately 0.97 liters per m 2 and h in continuous operation.
  • Typical running time examples for a dust binding device with such hanging nozzles are explained below, with these running time examples applying to both types of nozzles:
  • the floor is first moistened for 10 to 20 minutes in cool weather (temperature ⁇ 13°C). After a break of one to several hours, moistening takes place again.
  • warm weather 13°C ⁇ temperature ⁇ 20°C
  • humidification takes place for 10 to 30 minutes, with the break between successive humidifications being around half an hour to a full hour. The further humidifications are carried out again over a period of around 10 to 30 minutes.
  • Such a dust binding device with hanging nozzles can, for example, be formed from a binding agent line 17 with an inner diameter of 28 mm, with branch lines 19 with atomizing nozzles 20 being arranged at regular intervals (approx. 6 to 7 meters).
  • the consumption is 70 liters of binding agent per hour per nozzle and the total consumption is about 4.13 m 3 /h.
  • the pipe volume is 67 liters. This corresponds to 1.6% of the total consumption per hour.
  • Such a small pipe volume can be quickly refilled after a break or downtime. Filling can be done with a conventional standard pump without the need for a pressure vessel or pressure valve that serves as a leak stop.
  • a pipe section with an inner diameter of 61.2 mm can be provided over a length of 500 m.
  • the pipe volume is then around 1470 liters.
  • the total consumption is therefore approximately 13.7 m 3 /h.
  • the pipe volume is therefore around 10% of the total consumption per hour. This means that if the pipe volume is completely emptied, it will take approximately 6 minutes for the pipe volume to be refilled with binder if the binder is pumped at a constant rate.
  • a pressure vessel with a gas cushion the useful volume of which approximately corresponds to the pipe volume.
  • a pressure vessel with a usable volume of 1500 liters would be useful here.
  • a special pump in particular a speed-controlled pump or a pump with particularly high performance, can be provided in order to quickly deliver the binder.
  • self-locking pressure control valves or pressure nozzles can also be provided, which prevent or delay leakage.
  • a line length of, for example, 1.6 km it makes sense to provide a pipe (hard PE) with an inside diameter of 130.8 mm.
  • the pipe volume is approx. 21 m 3 . This corresponds to around 25% of the consumption of binder per Hour. At a constant flow rate, refilling a completely empty pipe volume would take approximately 15 minutes. Such a long delay is fundamentally unacceptable.
  • the mist output distance for each nozzle is approximately 80 cm, measured horizontally directly at the nozzle. By the time the fog has reached the ground, the fog has expanded to approximately 1.5 m.
  • the single nozzle uses around 7.5 liters of binder per hour at an operating pressure of 4 bar, the 4-fold model uses around 30 liters per hour. In pulsed operation, this results in a consumption of around 0.002 liters per second or 0.008 liters per second.
  • Such a dust binding device can also be designed as a low-flow dust binding device. Then the single nozzle uses around 5.5 liters of binder per hour and the 4-fold model uses around 22 liters of binder per hour (0.0015 l/sec. or 0.006 l/sec.).
  • the individual nozzles are usually installed in the pipeline at a distance of around 10 cm, the quadruple nozzles at a distance of around 0.5 to 2 meters.
  • the stone crusher machine is provided with a fogging line on two sides, each of which is 3 meters long, with the fogging line being located 1.7 meters away from the stone crusher machine.
  • the nozzle spacing is 1 meter, which means there are six atomizing nozzles.
  • the operating pressure is 5 bar.
  • a fog pulse lasting 2 seconds is generated every 28 seconds.
  • the fog emerges from the hall ceiling and falls down.
  • Each pulse uses 6.6 liters of binder. This results in an effective binder consumption of around 800 liters per hour. That's only one fifteenth compared to continuous operation.
  • a dust-generating construction vehicle continually produces dusty air by stirring up ground dust, which rises from the ground and circulates.
  • Misting nozzles are installed on two sides of the construction vehicle at a distance of 1.5 meters above the ground. There are a total of ten mist nozzles with an hourly consumption of 300 liters at an operating pressure of 4 bar.
  • the fog system is operated in a pulsed manner. Mist is emitted for 1 second at a time, then paused for 4 seconds.
  • Each mist pulse leads to the consumption of 0.08 liters of binder.
  • the binder consumption is 60 liters per hour. This means that only around a fifth of the binder is used compared to continuous fog operation.

Landscapes

  • Nozzles (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Spray Control Apparatus (AREA)
  • Separation Of Particles Using Liquids (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Prevention Of Fouling (AREA)

Claims (15)

  1. Dispositif pour lier la poussière, comprenant un réservoir de liant, qui fournit un liant liquide sous pression, une conduite de liant, qui est reliée au réservoir de liant, dans laquelle au moins une buse d'atomisation (20, 21) est raccordée à la conduite de liant, laquelle peut être placée à proximité d'une source de poussière, et en ce que la conduite de liant présente une ou plusieurs soupapes de commande de pression qui sont conçues de telle sorte qu'elles s'ouvrent en tant que soupapes de commutation de pression à partir d'une pression de commutation prédéterminée et libèrent ainsi une alimentation en liant vers la ou les buses de pulvérisation (20, 21) ou s'ouvrent en tant que soupapes de régulation de pression également à partir d'une pression de commutation prédéterminée et régulent en même temps la pression sur le côté aval de la soupape de régulation de pression sur une plage de pression prédéterminée, et en ce que le réservoir de liant comprend au moins une cuve sous pression avec coussin de gaz (41), qui est divisée en une chambre de pression de gaz et une chambre de liant, la conduite de liant présentant un trajet d'au moins 100 m, le long duquel sont disposées plusieurs buses de pulvérisation (20, 21).
  2. Dispositif pour lier la poussière selon la revendication 1, dans lequel un sol est mouillé par une pluie de pulvérisation, et dans lequel le dispositif est conçu de telle sorte que pas plus de 6 l/m2 h d'agent de liaison sont déchargés sur le sol pendant une opération de pulvérisation.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que, le dispositif est conçu de telle sorte que pas plus de 3 l/m2 h et de préférence pas plus de 1,2 l/m2 h de liant sont déchargés pendant une opération de pulvérisation.
  4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce que en ce que les buses d'atomisation (20, 21) sont disposées le long de la conduite de liant avec un espacement ne dépassant pas 10 m, de préférence ne dépassant pas 8 m et en particulier ne dépassant pas 7 m.
  5. Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que en ce que les buses de pulvérisation (20, 21) sont configurées pour pulvériser le liant avec un cône de pulvérisation en forme de cercle ou de segment de cercle, la distance maximale entre deux buses de pulvérisation (20, 21) voisines n'étant pas supérieure à 80% du diamètre de ce cercle.
  6. Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que en ce que le réservoir de liant est configuré de manière à fournir le liant à une pression maximale de 10 bars et de préférence à une pression maximale de 5 bars, et/ou en ce que le réservoir de liant fournit le liant à une pression minimale de 2 bars et de préférence à une pression minimale de 4 bars.
  7. Dispositif selon l'une quelconque des revendications 1 à 6, caractérisé en ce que en ce que la ou les buses d'atomisation (20, 21) sont configurées pour atomiser le liant avec une taille de gouttelettes comprise entre 30 et 120 µm et de préférence entre 50 et 100 µm et notamment entre 60 et 90 µm.
  8. Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé en ce que en ce que l'au moins une buse de pulvérisation (20, 21) est une buse à pression qui s'ouvre automatiquement à partir d'une certaine pression d'ouverture du liant amené, ou est combinée avec une soupape de commande de pression à ouverture automatique, et le dispositif présente une commande de pression avec laquelle la pression dans la conduite de liant peut être commandée.
  9. Dispositif selon la revendication 8, caractérisé en ce que en ce que la commande de pression comporte une vanne de commande qui est disposée dans la conduite de liant dans la zone entre le réservoir de liant et la au moins une buse de pression et qui peut être commandée par un dispositif de commande (38), et/ou en ce que la au moins une buse de pulvérisation (20, 21) est pourvue d'une vanne pouvant être commandée directement par un dispositif de commande (38).
  10. Dispositif selon l'une quelconque des revendications 1 à 9, caractérisé en ce que en ce que l'autoclave avec coussin de gaz (41) présente une conduite d'alimentation (42) pour remplir l'autoclave avec coussin de gaz (41) et une conduite d'évacuation (43) pour vider l'autoclave avec coussin de gaz (41), la conduite d'alimentation (42) présentant une résistance à l'écoulement par rapport à la conduite d'évacuation (43), comme par ex. un rétrécissement de la section transversale, de sorte que le remplissage de la cuve sous pression avec un coussin de gaz (41) s'effectue avec un débit volumique plus faible que la vidange de la cuve sous pression avec un coussin de gaz (41), la conduite d'évacuation (43) présentant en particulier un clapet anti-retour, de sorte que le liant ne peut s'écouler à travers la conduite d'évacuation (43) que pour vider la cuve sous pression.
  11. Dispositif selon l'une quelconque des revendications 1 à 10, caractérisé en ce que en ce que plusieurs vannes de commande de pression sont disposées dans la conduite de liant, lesquelles présentent une pression de commutation différente, de manière à former dans la conduite de liant des tronçons présentant des niveaux de pression différents.
  12. Dispositif selon la revendication 11, caractérisé en ce que en ce qu'une ou plusieurs vannes de commande de pression sont disposées dans une branche principale (50) de la conduite de liant, de sorte que la branche principale (50) est divisée en tronçons ayant des niveaux de pression prédéterminés, et/ou en ce qu'une ou plusieurs vannes de commande de pression sont disposées dans une branche de la conduite de liant dérivant d'une branche principale (50), de sorte que la branche respective est fermée lorsque la pression de commutation n'est pas atteinte, les vannes de commande de pression étant de préférence intégrées chacune dans une buse d'atomisation (20, 21).
  13. Dispositif selon l'une quelconque des revendications 1 à 12, caractérisé en ce que en ce que la conduite de liant est réalisée avec une élasticité pour tamponner élastiquement le liant d'au moins 1 %o et de préférence d'au moins 0,5 % du volume total de la conduite de liant en raison d'une élasticité de la paroi du tube, d'au moins une poche de gaz et/ou d'un réservoir à membrane.
  14. Dispositif selon l'une quelconque des revendications 1 à 13, caractérisé en ce que il est prévu un dispositif de commande (38) qui est conçu de telle sorte qu'il commande l'alimentation en liant de la cuve sous pression avec coussin de gaz (41) dans la conduite de liant en fonction d'un niveau de remplissage de la conduite de liant, du niveau de remplissage de la cuve sous pression avec coussin de gaz (41) et/ou de la vitesse d'écoulement dans la conduite de liant.
  15. Procédé pour lier la poussière avec un liant, dans lequel un dispositif selon l'une quelconque des revendications 1 à 14 est utilisé, et l'agent de liaison est déchargé par intervalles avec des phases de pulvérisation et des phases de pause.
EP22158090.5A 2016-10-06 2017-10-06 Dispositif et procédé pour agglomérer la poussière Active EP4019154B1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
ATA50903/2016A AT519212B1 (de) 2016-10-06 2016-10-06 Vorrichtung und Verfahren zum Binden von Staub
DE202016105572.5U DE202016105572U1 (de) 2016-10-06 2016-10-06 Vorrichtung zum Binden von Staub
DE202016105570.9U DE202016105570U1 (de) 2016-10-06 2016-10-06 Vorrichtung zum Binden von Staub
DE202016105569.5U DE202016105569U1 (de) 2016-10-06 2016-10-06 Vorrichtung zum Binden von Staub
PCT/EP2017/075501 WO2018065586A1 (fr) 2016-10-06 2017-10-06 Dispositif et procédé pour agglomérer la poussière
EP17780412.7A EP3523057B1 (fr) 2016-10-06 2017-10-06 Dispositif et procédé pour agglomérer la poussière

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP17780412.7A Division EP3523057B1 (fr) 2016-10-06 2017-10-06 Dispositif et procédé pour agglomérer la poussière
EP17780412.7A Division-Into EP3523057B1 (fr) 2016-10-06 2017-10-06 Dispositif et procédé pour agglomérer la poussière

Publications (3)

Publication Number Publication Date
EP4019154A1 EP4019154A1 (fr) 2022-06-29
EP4019154B1 true EP4019154B1 (fr) 2024-01-31
EP4019154C0 EP4019154C0 (fr) 2024-01-31

Family

ID=66673834

Family Applications (2)

Application Number Title Priority Date Filing Date
EP22158090.5A Active EP4019154B1 (fr) 2016-10-06 2017-10-06 Dispositif et procédé pour agglomérer la poussière
EP17780412.7A Active EP3523057B1 (fr) 2016-10-06 2017-10-06 Dispositif et procédé pour agglomérer la poussière

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP17780412.7A Active EP3523057B1 (fr) 2016-10-06 2017-10-06 Dispositif et procédé pour agglomérer la poussière

Country Status (8)

Country Link
US (2) US11285501B2 (fr)
EP (2) EP4019154B1 (fr)
JP (1) JP7164202B2 (fr)
KR (1) KR102505559B1 (fr)
CN (1) CN109843455A (fr)
AU (1) AU2017339088B2 (fr)
CA (1) CA3059384A1 (fr)
SG (1) SG11201903023PA (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110203724A (zh) * 2019-05-09 2019-09-06 重庆金徽博鑫工艺品有限公司 一种机械制造物料放置桶
CN112044910B (zh) * 2020-07-28 2022-04-08 湖南中联重科混凝土机械站类设备有限公司 除尘系统及砂石骨料生产线
KR102218434B1 (ko) 2020-08-07 2021-02-22 주식회사 스타인더스트리 석탄화력발전소 석탄저장고용 미스트 분사장치
KR102712558B1 (ko) * 2020-11-02 2024-10-04 주식회사 에스피앤이 고효율 습식 초미세먼지 및 악취 제거장치
CN113521923A (zh) * 2021-06-22 2021-10-22 山东东山新驿煤矿有限公司 一种洗煤过程中云雾智能抑尘系统、抑尘方法及安装方法
CN114009420B (zh) * 2021-10-29 2023-04-28 滦州市百信农业开发有限公司 一种农用驱虫设备及驱虫方法
CN114232714B (zh) * 2021-12-30 2023-08-11 徐工集团工程机械股份有限公司科技分公司 一种装载机智能减尘降尘阻尘控制方法、装置及系统
CN114673568B (zh) * 2022-02-17 2024-01-26 华北电力科学研究院有限责任公司 汽轮机组热源切换装置
CN117384655B (zh) * 2023-11-23 2024-05-14 青岛德施普工程技术有限公司 一种内置喷淋降尘机构的熄焦烟道

Family Cites Families (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE179574C (fr)
DE258837C (fr)
US479979A (en) 1891-01-05 1892-08-02 Sprinkling apparatus
DE380896C (de) 1916-12-24 1923-09-13 Walter Krause Beregnungsanlage mit von einer Feldleitung abgehenden Zweigleitungen
DE413175C (de) 1924-03-04 1925-05-05 Lagerfeld & Co Fa Stehplakat mit Hinterwandstuetze, das als Warentraeger dient
DE915203C (de) 1952-01-22 1954-07-19 Herwarth Reich Dipl Ing Verfahren und Einrichtung zum Niederschlagen von Staub, Schiessschwaden od. dgl.
DE1658345U (de) 1952-11-04 1953-07-02 Herwarth Reich Maschinen U App Duese zur zerstaeubung von wasser oder eines wasser luft-gemisches, insbesondere fuer die niederschlagung von staub im untertaegigen bergbau.
US2722456A (en) 1953-04-10 1955-11-01 Robert A Gilmour Stable spraying apparatus
DE1668644U (de) 1953-09-15 1953-12-17 Hebag Saarl Hebezeugbau G M B Vorrichtung zum niederschlagen von staub aus gasen durch dampf, insbesondere wasserdampf.
DE1795744U (de) 1959-03-03 1959-09-17 Ruhr Lippe Ind Bedarf Walter E Vorrichtung zum niederschlagen des in der luft schwebenden staubes.
DE1833442U (de) 1961-04-12 1961-06-22 Werner Stoll Ambulant verlegbare anordnung zum beregnen landwirtschaftlicher nutzflaechen.
DE1658345C3 (de) 1967-01-19 1973-09-27 Fried. Krupp Huettenwerke Ag, 4630 Bochum Schiene fur ein Fahrzeug mit Spur kranzradern
FR1568738A (fr) 1967-01-20 1969-05-30
DK115019B (da) 1968-06-26 1969-08-25 V Hansen Sprinkleranlæg til drivhuse.
DE6812095U (de) 1968-12-13 1969-04-03 Huettenwerk Oberhausen Ag Vorrichtung zum niederschlagen von staub.
DE1815543A1 (de) 1968-12-19 1970-06-25 Huettenwerk Oberhausen Ag Einrichtung zum Niederschlagen von Staub
DE2335861A1 (de) 1973-07-14 1975-01-30 Buehler Miag Gmbh Anordnung zum einbringen von leicht staubendem schuettgut in einen speicher
DE7535462U (de) 1975-11-07 1977-05-26 Gewerkschaft Eisenhuette Westfalia, 4670 Luenen Steuergeraet fuer die schaltbetaetigung von spruehduesen zum niederschlagen des staubes in bergbau-gewinnungsbetrieben
JPS5460139A (en) * 1977-10-24 1979-05-15 Hitachi Chemical Co Ltd Multiipurpose irrigating installation for field
DE3441386A1 (de) 1984-11-13 1986-05-15 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Verfahren und einrichtung zum niederschlagen von staub bei teilschnittmaschinen
DD258837A1 (de) 1987-03-18 1988-08-03 Senftenberg Braunkohle Verfahren und anordnung zum erzeugen grossflaechiger staubsperren
DE3942496A1 (de) * 1989-12-22 1991-06-27 Breining Robert Masch Verfahren zum dosierten auftragen eines fluessigen bindemittels, insbesondere von bitumen, auf eine oberflaeche
DE4131750C2 (de) 1991-09-24 1993-12-16 Hemscheidt Maschf Hermann Hobelgassenbedüsungssystem
DE29602168U1 (de) 1996-02-08 1996-06-05 Vehling, Frank, 59510 Lippetal Anfeuchtkanone zum Anfeuchten von Staubgut o.dgl.
DE29718708U1 (de) 1997-10-09 1997-11-27 Schöndorfer Bau- und Umwelttechnik GmbH, 83435 Bad Reichenhall Vorrichtung zur Bindung bzw. Niederschlagung von Staub
DE29806581U1 (de) 1998-04-14 1999-08-26 Lahm-Späth, David, 55758 Kempfeld Sprühanlage
DE29916317U1 (de) 1999-09-16 1999-12-30 Koch, Ludwig, 64319 Pfungstadt Verfahrbare Speichervorrichtung
JP3431904B2 (ja) 2001-03-06 2003-07-28 株式会社メンテック 浮遊粉塵除去方法及びそのシステム
AU2003301055A1 (en) * 2002-12-20 2004-07-22 Cree, Inc. Methods of forming semiconductor devices having self aligned semiconductor mesas and contact layers and related devices
US8333333B2 (en) * 2005-12-01 2012-12-18 Lynn Embry Apparatus for dust control
CN2888072Y (zh) 2006-04-21 2007-04-11 山东金岭铁矿 液压破碎锤稳压装置
NL2000161C2 (nl) * 2006-07-27 2008-01-29 Martinus Hogenes Werkwijze en inrichting voor het tegengaan van stofvorming bij destructiewerkzaamheden.
PL213652B1 (pl) 2006-08-13 2013-04-30 Karazniewicz Krzysztof Inzektorowe urzadzenie zraszajace oraz gniazdo inzektorowego urzadzenia zraszajacego
PL212903B1 (pl) 2007-01-02 2012-12-31 Krzysztof Karazniewicz Dysza wodna rozpylajaca oraz sposób optymalizacji parametrów pracy dyszy wodnej rozpylajacej
US20080283623A1 (en) * 2007-05-15 2008-11-20 Evaporite Systems, Inc. Water evaporation system using nozzles attached to a suspended cable
JP5297743B2 (ja) 2008-09-29 2013-09-25 三機工業株式会社 水噴霧設備及び水噴霧設備の運転方法
US8453658B2 (en) * 2010-01-05 2013-06-04 Glen E. Morrow Pressure progressing spray fitting apparatus
DE202010001744U1 (de) 2010-02-02 2010-05-12 Protecfire Gmbh Sprühdüseneinheit
CN201660864U (zh) * 2010-02-26 2010-12-01 北京航天衡科技有限公司 空气质量自适应喷雾降尘系统
US9199267B2 (en) 2011-07-11 2015-12-01 John Bandura Apparatus and method for spray coating a material handling surface
AT512490B1 (de) 2012-01-16 2016-08-15 Janousek Alfred Hochdrucknebelanlage
CN202803478U (zh) 2012-07-30 2013-03-20 三一重型装备有限公司 喷雾装置和矿用机械
US9486825B2 (en) * 2012-08-29 2016-11-08 Caterpillar Inc. Control system for mobile fluid delivery machine
WO2014134290A2 (fr) 2013-02-28 2014-09-04 Nye John R Système d'application de vaporisation fixe
AU2013202369B1 (en) * 2013-04-03 2014-09-25 Flinders Ports Pty Limited A dust suppression system for loading ship holds
CN203508461U (zh) * 2013-09-26 2014-04-02 重庆永泰流体控制技术有限公司 自适压切换回路的单泵多路高压流体输送系统
JP6253399B2 (ja) 2013-12-25 2017-12-27 能美防災株式会社 トンネル内降温用噴霧システム
CN203700087U (zh) 2014-01-15 2014-07-09 内蒙古蒙水水资源股份有限公司 一种矿井废水净化处理装置
CN103925831B (zh) * 2014-05-12 2016-05-25 赵宽学 空调换热器外接式清洗装置
CN104259024B (zh) * 2014-09-22 2017-03-08 巨隆液压设备(集团)有限公司 一种出水稳定型端头液压支架喷头
CN204214150U (zh) * 2014-11-03 2015-03-18 云南西铁科技设备工程有限公司 一种空气源热泵机组光控运行装置
US10264740B2 (en) * 2014-12-05 2019-04-23 Pivot Pup Irrigation, LLC Irrigating soils and crops
CA2973859C (fr) 2015-01-12 2018-10-09 Midwest Industrial Supply, Inc. Plateau de deviation de rampe de pulverisation
DE202015104984U1 (de) 2015-06-10 2015-10-19 Patrik Lachmair Vorrichtung zum Entfernen von Schwebstaub, insbesondere Feinstaub, aus der Umgebungsluft einer Verkehrsinfrastruktur
CN204974263U (zh) 2015-08-28 2016-01-20 神华集团有限责任公司 煤场栈桥式喷淋装置
CN207951785U (zh) 2018-01-07 2018-10-12 中铁四局集团建筑工程有限公司 一种工地喷淋降尘装置

Also Published As

Publication number Publication date
KR20190067809A (ko) 2019-06-17
EP4019154C0 (fr) 2024-01-31
US20220168763A1 (en) 2022-06-02
AU2017339088A1 (en) 2020-04-09
SG11201903023PA (en) 2019-05-30
US20210229122A1 (en) 2021-07-29
CA3059384A1 (fr) 2018-04-12
KR102505559B1 (ko) 2023-03-06
CN109843455A (zh) 2019-06-04
US11285501B2 (en) 2022-03-29
AU2017339088B2 (en) 2023-04-13
JP2019537509A (ja) 2019-12-26
EP3523057C0 (fr) 2023-06-07
JP7164202B2 (ja) 2022-11-01
EP3523057B1 (fr) 2023-06-07
EP4019154A1 (fr) 2022-06-29
EP3523057A1 (fr) 2019-08-14

Similar Documents

Publication Publication Date Title
EP4019154B1 (fr) Dispositif et procédé pour agglomérer la poussière
AT519211B1 (de) Entstaubungsvorrichtung
WO2018065586A1 (fr) Dispositif et procédé pour agglomérer la poussière
DE102010014904A1 (de) Einsprüheinrichtung für eine Baumaschine und Verfahren zum Betrieb einer Einsprüheinrichtung
DE102016001187A1 (de) Wasserabflusssystem mit automatisch regelbarer Abflussmenge
EP0938615A1 (fr) Systeme d'accumulation, de guidage et de traitement de l'eau integre a un element de surface de sol et comportant un dispositif de protection des eaux et du sol integrable
DE102005026644B4 (de) Verfahren zur Retention von Niederschlagswasser in einer Versickerungsfläche im Gebiet der Entstehung
AT519212B1 (de) Vorrichtung und Verfahren zum Binden von Staub
DE102005030095B4 (de) Sandungseinrichtung für Schienenfahrzeuge
EP0570739B1 (fr) Système de drainage
EP2517551B1 (fr) Système d'irrigation
DE10142113A1 (de) Sprühkasten
AT410811B (de) Vorrichtung zur entnahme von nutzwasser aus oberflächengewässern
KR102195207B1 (ko) 송전구조물을 이용한 미세먼지 저감장치
EP1717373A2 (fr) Centrale hydroélectrique
DE3316030A1 (de) Verfahren und vorrichtung zur befeuchtung von koernigem oder pulverfoermigen streugut
DE102005052111A1 (de) Verfahren und Vorrichtung zur Befestigung von Bauwerken, insbesondere Wasserbauwerken
DE10331434A1 (de) Befeuchtungsvorrichtung für Streufahrzeuge
WO2008104172A2 (fr) Élimination écologique des eaux salées résultant de la production de potasse au moyen d'un processus d'évaporation par pulvérisation et d'une barrière aérosol
DD258837A1 (de) Verfahren und anordnung zum erzeugen grossflaechiger staubsperren
DE202020000249U1 (de) Vertikal fahrbarer, autonomer, sensorisch gesteuerter Pflanzkasten zur Fassadenbegrünung und Feinstaubfilterung in urbanen Bereichen
CN110583439A (zh) 一种路面绿化带灌溉系统及方法
AT520060A1 (de) Vorrichtung zur Zuführung von Löschmittel
DE102008017918A1 (de) Robuste Systeme zum Sprühen über und Benetzen von Salzhalden
DE202014100126U1 (de) Vererdungsbecken für wässrige Suspensionen mit einer Steigrohre aufweisenden Beschickungseinrichtung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AC Divisional application: reference to earlier application

Ref document number: 3523057

Country of ref document: EP

Kind code of ref document: P

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20221222

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20230904

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AC Divisional application: reference to earlier application

Ref document number: 3523057

Country of ref document: EP

Kind code of ref document: P

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502017015809

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

U01 Request for unitary effect filed

Effective date: 20240202

U07 Unitary effect registered

Designated state(s): AT BE BG DE DK EE FI FR IT LT LU LV MT NL PT SE SI

Effective date: 20240213

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240531

U1O Appointed representative for the unitary patent procedure deleted [after the registration of the unitary effect]
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240430

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240430

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240430

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240531

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240131

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240501

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240131